Convertible sofa bed



FIG. 1 is a perspective view of a convertible sofa bed showing our newdesign, wherein the convertible sofa bed is illustrated in a couchconfiguration;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a perspective view illustrating the convertible sofa bed, in atwin bed configuration;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a right side elevational view thereof;

FIG. 14 is a left side elevational view thereof;

FIG. 15 is a perspective view illustrating the convertible sofa bed, ina queen bed configuration;

FIG. 16 is a top plan view thereof;

FIG. 17 is a bottom plan view thereof;

FIG. 18 is a front elevational view thereof;

FIG. 19 is a rear elevational view thereof;

FIG. 20 is a right side elevational view thereof; and,

FIG. 21 is a left side elevational view thereof.

The broken lines in the drawings illustrate portions of the convertiblesofa bed that form no part of the claimed design.

CLAIM The ornamental design for a convertible sofa bed, as shown anddescribed.